Anthony Sargeant reviews the effect of fatigue and temperature on human muscle power

In this review based on a Key Note Lecture to a Dutch Physiological Society Symposium Tony Sargeant explains how human muscle power is affected by changes in muscle temperature and by fatigue. Importantly that the magnitude of changes depends on the speed of the muscle contraction generating power and the muscle fibre types present in the muscles.
International Journal of Sports Medicine
Int J Sports Med. 1994 Apr;15(3):116-121

In human locomotion the ability to generate and sustain power output is of fundamental importance. This review examines the implications for power output of having variability in the metabolic and contractile properties within the population of muscle fibres which comprise the major locomotory muscles. Reference is made to studies using an isokinetic cycle ergometer by which the global power/velocity relationship for the leg extensor muscles can be determined.

The data from these studies are examined in the light of the force velocity characteristics of human type I and type II muscle fibres. The ‘plasticity’ of fibre properties is discussed with reference to the ‘acute’ changes elicited by exercise induced fatigue and changes in muscle temperature and ‘chronic’ changes occurring following intensive training and ageing


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